Noncontrolling Interest - Changes In Noncontrolling Interest (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Beginning balance			$ 252,404
Comprehensive Income:
Net Income Attributable to Noncontrolling Interest	$ 12,729	$ 7,693	26,922	$ 21,569
Total Comprehensive Income	11,789	7,953	26,503	21,873
Total Other Items			(45,523)	(15,128)
Ending balance	227,274		227,274
Noncontrolling Interest [Member]
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Beginning balance			252,404	256,033
Comprehensive Income:
Net Income Attributable to Noncontrolling Interest			26,922	21,569
Other Comprehensive Income (Loss)			(419)	304
Total Comprehensive Income			26,503	21,873
Evercore LP Units Purchased or Converted into Class A Shares			(41,565)	(26,360)
Amortization and Vesting of LP Units/Interests			9,997	(3,119)
Distributions to Noncontrolling Interests			(20,584)	(15,944)
Issuance of Noncontrolling Interest			830	8,279
Purchase of Noncontrolling Interest			(311)	(261)
Other, net			0	(148)
Total Other Items			(20,065)	(8,074)
Ending balance	$ 227,274	$ 240,353	$ 227,274	$ 240,353